Wigner crystal -- not Mott insulator -- in 'magic-angle' graphene

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Recently, scientists created a stir in the field of condensed matter physics when they showed that two sheets of graphene twisted at specific angles display two emergent phases of matter. After a careful review of the experimental data researchers say that the insulating behavior of the ''magic-angle'' graphene is not Mott insulation, but something even more profound -- a Wigner crystal.

from Latest Science News -- ScienceDaily https://ift.tt/2MWAbxb

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